This NEESPI project focuses on assessing, currently and over thenext 30 years, potential impacts of climate and land use change on agriculture and forestry. In Ukraine, a bread basket of the former Soviet Union, a large portion of land is managed for agriculture and forestry. Key patterns of the last 15 years have been land abandonment, together with recent developments of new cultivations for exports, including bio-energy crops. Within this scenario, interactions between carbon cycle, competing land use for agriculture and forestry need to be considered in order to predict potentials for bio-energy and carbon sequestration. The modeling tools developed to date include dynamic crop models (DSSAT), agro-ecological zone (AEZ-IIASA), and forestry statistical